llvm-project

da17ced1 - [DirectX] Use scalar arguments for @llvm.dx.dot intrinsics (#134570)

[DirectX] Use scalar arguments for @llvm.dx.dot intrinsics (#134570) The `dx.dot2`, `dot3`, and `dot4` intrinsics exist purely to lower `dx.fdot`, and they map exactly to the DXIL ops of the same name. Using vectors for their arguments adds unnecessary complexity and causes us to have vector operations that are not trivial to lower post-scalarizer. Similarly, the `dx.dot2add` intrinsic is overly generic for something that only needs to lower to a single `dot2AddHalf` DXIL op. Update its signature to match the operation it lowers to. Fixes #134569.